The Opel Astra J (facelift, introduced in 2012) 1.7 CDTI ecoFLEX start/stop represents a significant iteration within the Astra J generation, produced from 2009 to 2015. This particular variant, powered by a 1.7-liter turbocharged diesel engine producing 110 horsepower, was aimed at the fuel-conscious European market. It occupied a mid-range position in the Astra J lineup, offering a balance between affordability, efficiency, and practicality. Production of this specific configuration ran from 2012 to 2014, coinciding with the mid-cycle refresh of the J series.
Technical Specifications
| Brand | Opel |
| Model | Astra |
| Generation | Astra J (facelift 2012) |
| Type (Engine) | 1.7 CDTI (110 Hp) Ecotec ecoFLEX start/stop |
| Start of production | 2012 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 4.7 l/100 km (50 US mpg, 60.1 UK mpg, 21.3 km/l) |
| Fuel consumption (extra urban) | 3.4 l/100 km (69.2 US mpg, 83.1 UK mpg, 29.4 km/l) |
| Fuel consumption (combined) | 3.7 l/100 km (63.6 US mpg, 76.3 UK mpg, 27 km/l) |
| CO2 emissions | 99 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 12.5 sec |
| Acceleration 0 – 62 mph | 12.5 sec |
| Acceleration 0 – 60 mph | 11.9 sec |
| Maximum speed | 188 km/h (116.82 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 12.5 kg/Hp, 80.3 Hp/tonne |
| Weight-to-torque ratio | 4.9 kg/Nm, 204.4 Nm/tonne |
| Power | 110 Hp @ 4000 rpm |
| Power per litre | 65.2 Hp/l |
| Torque | 280 Nm @ 1750-2500 rpm (206.52 lb.-ft. @ 1750-2500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | A17DTE |
| Engine displacement | 1686 cm3 (102.89 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 79 mm (3.11 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5.4 l (5.71 US qt | 4.75 UK qt) |
| Coolant | 7.1 l (7.5 US qt | 6.25 UK qt) |
| Kerb Weight | 1370 kg (3020.33 lbs.) |
| Max. weight | 1940 kg (4276.97 lbs.) |
| Max load | 570 kg (1256.63 lbs.) |
| Trunk (boot) space – minimum | 370 l (13.07 cu. ft.) |
| Trunk (boot) space – maximum | 1235 l (43.61 cu. ft.) |
| Fuel tank capacity | 56 l (14.79 US gal | 12.32 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Length | 4419 mm (173.98 in.) |
| Width | 1814 mm (71.42 in.) |
| Width with mirrors folded | 1831 mm (72.09 in.) |
| Width including mirrors | 2013 mm (79.25 in.) |
| Height | 1510 mm (59.45 in.) |
| Wheelbase | 2685 mm (105.71 in.) |
| Front track | 1541 mm (60.67 in.) |
| Rear (Back) track | 1551 mm (61.06 in.) |
| Minimum turning circle | 11.4 m (37.4 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 6 |
| Type of gearbox | Manual transmission |
| Front brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 205/60 R16 |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
At the heart of the Astra J 1.7 CDTI ecoFLEX lies the A17DTE engine, a 1.7-liter inline-four cylinder diesel. This engine is part of Opel/Vauxhall’s ‘Ecotec’ family, designed with fuel efficiency in mind. It utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A turbocharger with an intercooler further enhances performance by forcing more air into the cylinders. The engine produces 110 horsepower at 4000 rpm and a respectable 280 Nm (206.52 lb-ft) of torque between 1750 and 2500 rpm. The ‘ecoFLEX’ designation indicates the inclusion of fuel-saving technologies, including the start/stop system which automatically shuts off the engine when the vehicle is stationary, reducing idle fuel consumption. This variant was exclusively offered with a six-speed manual transmission, prioritizing fuel economy over outright performance.
Driving Characteristics
The 1.7 CDTI with the manual gearbox delivers a practical, if not exhilarating, driving experience. Acceleration from 0-60 mph takes around 11.9 seconds, and top speed is rated at 116.82 mph. The engine’s torque peak is relatively low in the rev range, providing adequate pulling power for everyday driving situations. However, it lacks the punch of higher-output Astra J variants like the 2.0 CDTI. The six-speed manual transmission is well-matched to the engine, allowing drivers to keep the engine in its optimal power band. Gear ratios are geared towards economy, with a relatively long final drive. Compared to the 2.0 CDTI, the 1.7 CDTI feels less refined and can be noisier, particularly at higher engine speeds.
Equipment & Trim Levels
The 1.7 CDTI ecoFLEX typically came equipped with a reasonable level of standard features. These included air conditioning, electric front windows, a CD/MP3 stereo system, and ABS brakes. Higher trim levels, such as ‘Sport’ or ‘SE’, added features like alloy wheels, cruise control, automatic headlights and rain-sensing wipers, and upgraded interior trim. Interior upholstery was typically cloth, with options for more premium materials on higher trims. The dashboard layout was functional and straightforward, with a focus on ergonomics.
Chassis & Braking
The Astra J 1.7 CDTI utilizes a MacPherson strut front suspension and a torsion beam rear suspension. This setup provides a good balance between ride comfort and handling. The front brakes are ventilated discs, while the rear brakes are typically solid discs, although some earlier models may have featured drum brakes depending on the specific trim level. Electric power steering provides light and precise steering feel. The suspension is tuned for comfort, but the Astra J still offers decent body control in corners.
Market Reception & Comparison
The Astra J 1.7 CDTI ecoFLEX was well-received by critics for its fuel efficiency and low running costs. It was seen as a sensible choice for drivers who prioritize economy over performance. Compared to the 2.0 CDTI, the 1.7 CDTI offered significantly better fuel economy, but at the expense of performance and refinement. The 1.9 CDTI, available in some markets, offered a compromise between the two, providing more power than the 1.7 CDTI but with slightly lower fuel economy than the 2.0 CDTI. Reliability was generally good, although some owners have reported issues with the diesel particulate filter (DPF) and the turbocharger.
Legacy
The Opel Astra J 1.7 CDTI ecoFLEX remains a popular choice in the used car market, particularly for those seeking an affordable and fuel-efficient hatchback. The A17DTE engine, while not known for its longevity like some older diesel engines, is generally reliable if properly maintained. Regular servicing, including oil changes and DPF regeneration, is crucial to ensure long-term reliability. The availability of spare parts is good, and the Astra J is relatively easy to repair. Today, these models represent a cost-effective entry point into modern hatchback ownership, offering a blend of practicality, efficiency, and reasonable comfort.
